As the grounds maintenance manager , you need to replace the fence of a 30 foot by 40 foot commercial lot. which of the following shows the calculation for the perimeter of the lot?

a. 30'+40'+30'+40'=140'
b. 30'+40'=70
c. 30'+30'+30'+40'=130'
d. 30'×40'=120'

The perimeter is found by adding all the outside dimensions together.

You are given the length and width,

The perimeter would be 30 + 40 + 30 +40 = 140

The answer is A.

Option A

Step-by-step explanation:

If grounds maintenance manager replaces the fence by 30 feet and 40 feet

then we have to find the perimeter of the commercial lot.

Since perimeter = 2( length + width)

                           = 2( 30 + 40 )

                           = ( 30' + 40' + 30' + 40' )

Option A is the correct option